Naval Historywith Dr. Alex

Q&A · 56:01-59:41

Retrofitting paddles and repairing propulsion at sea

Paddles avoided a propeller opening through the hull, but neither system made conversion simple and screws were awkward to service at sea.

Paddle SteamersScrew PropellersShip MaintenanceWarship Design
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Question

Were paddles easier to retrofit, and could early screw propellers be raised for repair?

Short answer

Paddles avoided a below-water shaft opening but still required major machinery work; lifting a screw was possible in theory, while repairing paddle floats at sea was much more practical.

Notes

Adding paddle machinery did not require a propeller shaft through the bottom of the ship, but the engine and structural work still made conversion difficult. Early screws could sometimes be lifted into a well while sailing. Doing so at sea was theoretically possible, though its practicality was doubtful. Paddle floats, by contrast, were routinely reachable and repairable without opening the hull.